Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/space.cpp
src/share/vm/memory/space.cpp
- changeset 2715
- abdfc822206f
- parent 2314
- f95d63e2154a
- child 2889
- fc2b798ab316
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| 2714:455328d90876 | 2715:abdfc822206f |
|---|---|
| 816 } | 816 } |
| 817 | 817 |
| 818 // This version requires locking. | 818 // This version requires locking. |
| 819 inline HeapWord* ContiguousSpace::allocate_impl(size_t size, | 819 inline HeapWord* ContiguousSpace::allocate_impl(size_t size, |
| 820 HeapWord* const end_value) { | 820 HeapWord* const end_value) { |
| 821 // In G1 there are places where a GC worker can allocates into a | |
| 822 // region using this serial allocation code without being prone to a | |
| 823 // race with other GC workers (we ensure that no other GC worker can | |
| 824 // access the same region at the same time). So the assert below is | |
| 825 // too strong in the case of G1. | |
| 821 assert(Heap_lock->owned_by_self() || | 826 assert(Heap_lock->owned_by_self() || |
| 822 (SafepointSynchronize::is_at_safepoint() && | 827 (SafepointSynchronize::is_at_safepoint() && |
| 823 Thread::current()->is_VM_thread()), | 828 (Thread::current()->is_VM_thread() || UseG1GC)), |
| 824 "not locked"); | 829 "not locked"); |
| 825 HeapWord* obj = top(); | 830 HeapWord* obj = top(); |
| 826 if (pointer_delta(end_value, obj) >= size) { | 831 if (pointer_delta(end_value, obj) >= size) { |
| 827 HeapWord* new_top = obj + size; | 832 HeapWord* new_top = obj + size; |
| 828 set_top(new_top); | 833 set_top(new_top); |
